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A three-phase, 60-Hz substation bus supplies two wye-connected loads that are connected in parallel through a three-phase feeder that has a per phase impedance of 0.5 + j2 Ω. Load 1 draws 50 kW at 0.866 lagging PF, and load 2 draws 36 kVA at 0.9 leading PF. If the line-to-line voltage at the load terminals is 460 V, find the following:
(a) Total line current flowing through the feeder.
(b) Per-phase impedance of each load.
(c) Line-to-line voltage at the substation bus.
(d) Total real and reactive power delivered by the bus.
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Does the current through the battery increase, decrease, or remain the same? Justify your answer.
Derive an expression similar to Eq. (56) for finding the optimum exit temperature of cooling water from a heat exchanger when the temperature of the material being cooled is not constant.
Methanol can be manufactured by the gas phase reaction CO(g) + 2H2(g)?CH3OH(g)at 400K and 1.013 bar.The following data are available;?H298= -90.71 kJ/mol?G298= -24.33 kJ/mol.
Compute the magnitude of the line-to-line voltage at the terminals of the load.
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Explain why the equilibrium membrane potential does not equal zero.
question 1the effect of a hazardous substance depends on the concentration of the substance that is present in the
What does this experiment reveal regarding the biocompatibility of this device, specifically regarding the inflammation response?
Two coupled synchronous machines are used as a motor-generator set to link a 25-Hz system to a 60-Hz system. Find the three highest speeds at which this linkage would be possible.
An 8-bit A/D converter is driven by a 1-MHz clock. Estimate the maximum conversion time if:
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